Convenia’s Many Uses

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As the use of Convenia long-acting antibiotic injection widens many readers are writing in with questions about it.

“Can it be used for upper respiratory infections?”

“Can it be used for urinary tract infections?”

“Can it be used for skin infections?”

The answer to all of these questions is “yes”. In fact, your pet’s doctor is licensed to use any medication approved for use in the United States by the Federal Food and Drug Administration (FDA). In fact, he may use unapproved medications under strict supervision and with permission if he is part of a valid research program.

In general, antibiotics are indicated for the removal of bacterial infections from the body. Some antibiotics, by their chemical and physical characteristics, penetrate certain organs or parts of the body better than others. These qualities in antibiotics are often a major factor in our choice of medication from the thousands of antibiotics available.

Convenia, from Pfizer Animal Health,  is approved for use in skin infections. The cephalosporin class of antibiotics has long been used for dermatologic purposes because it has a broad spectrum of effectiveness on a wide variety of bacteria and a strong ability to accumulate in the skin, where skin infections abide.

Cephalosporins, however, also have great usefulness in other organ systems and Convenia has proven itself in widespread use.

As its name implies, Convenia is very convenient because of its ability to take the place of twice-daily and thrice-daily oral antibiotics. Sometimes that characteristic is lifesaving, such as the cat who can’t be pilled or the dog whose gastrointestinal (GI) tract doesn’t tolerate oral antibiotics.

I had just such a case as the latter example this week. Benji is a little mixed-breed dog with severely infected lick granulomas on both rear legs. Benji also has terrible dental disease and a very sore mouth to go with it. He’s also a little too smart for his own good.

We had dispensed an oral antibiotic for his skin and on the first day he took it in a treat. On day two he refused the treat, but took it in a piece of bread. On day three he refused the treat and the bread, but took the medicine in a small piece of bologna. On day four…OK, you’re already ahead of me. Before a week was out Benji was refusing all forms of disguise for the oral medication.

Furthermore, Benji was vomiting shortly after each dose and his stool was a little loose. These are not uncommon problems with oral forms of cephalosporins. Adding yogurt to his diet helped, and his owner was even able to disguise the medication in the yogurt.

For one day.

When it came down to a no-treats-are-working situation it was time to give a pill conventionally. Open the mouth and push it behind the tongue. Because of Benji’s sore mouth, though, that wasn’t working, either.

We knew we were on the right track with the cephalosporin because both lick granuloma lesions were looking better.

Enter Convenia.

Because it was not oral, the GI tract problems should disappear.

Because it is in the cephalosporin family it should give us ongoing improvement in the skin lesions.

And, it did. Benji is now feeling much better and his legs are looking great.

We have performed preanesthesia laboratory testing and all results are good. Benji is fifteen years of age and will be very healthy after we take care of his oral problems.

Benji is scheduled for that procedure in August and we expect to have him around for another five years of happy companionship.

See you tomorrow, Dr. Randolph.


  1. Diane Lockhart says:

    my 4 yr old male cat has had chronic nasal congestion, sneezing bloody greenish mucous since he was tiny, has been treated numerous times with various antibiotics , antivirals etc. do you have any suggestions for treatment , he has trouble breathing through his nose , seems well in every other way, eats and is playful , enjoys exploring outdoors etc.

  2. Ellen says:

    I rescued a cat. He has red gums even has an eye infection because of an infected tooth. The tooth was extracted, he was given a convenia injection, and his eye was flushed, and antibiotic eye ointment. I found putting the eye ointment on him makes him want to itch his eye like crazy. My question is will the injection help with infection in the eye and gums.

  3. rosey55 says:

    mydog 9mnths, was off his food and water, on a sunday. we were worried so rang the vets. he has a habit of eating stones. it cost us £76 before any treatment. we were then charged £54.55p for one anti sickness injection of convenia.?.this seems an awful lot of money for one injection and pup was fine next day.

    • Rosey, did you consider that he was better the next day because of the Convenia injection? I frequently hear from pet owners who are happy about Convenia’s results but unhappy about the cost. I strongly feel that clients should be offered an estimate of cost of services in every case.

  4. Ann says:

    4 yr old cat has respiratory virus. Would this help with her frequent colds?

  5. P. McV says:

    My cat, Scooter is suffering from an urinary tract infection. Two days ago he was given an injection of Convenia. As yet, I have not seen an improvement in his condition. My question – when should his infection begin to subside?

  6. Ann Crowe says:

    I would like to know if young cats have the same kind of teething problems as young dogs do in chewing, biting, etc. on whatever they can find in the house?

  7. Michele Turns says:

    How much does a dose of Convenia cost?

    • Michelle, the cost of Convenia is proportional to the body weight of the patient. Individual veterinarians are free to charge what they wish, there is no set cost, therefore it can vary from one practice to another and according to the size of the pet.


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